#!/usr/bin/python3
num = input("please input two numbers:")
aa = num.split(" ")
summ = float(aa[0]) + float(aa[1])
print ("x + y = %f"%summ)
mins = float(aa[0]) - float(aa[1])
print ("x - y = %f"%mins)
mult = float(aa[0]) * float(aa[1])
print ("x * y = %f"%mult)
divi = float(aa[0]) / float(aa[1])
print ("x / y = %f"%divi)
modu = float(aa[0]) % float(aa[1])
print ("x %% y = %f"%modu)
